LG-Ericsson iPECS-MG - CO Line Boards; LCOB (Loop Start CO Line Interface Board)

iPECS-MG Hardware Description and Installation Manual Issue 1.1
DECT INSTALLATION August, 2010
33
5.3 CO Line Boards
5.3.1 LCOB (Loop Start CO Line Interface Board)
The iPECS-MG LCOB (Loop Start CO Interface Board) is employed to interface standard analog
PSTN CO lines to the iPECS-MG system. The LCOB is available in three models, the LCOB4 with 4
analog CO ports, the LCOB8 with 8 ports, and the LCOB12 with 12 ports. The LCOB supports Caller
Identification (CID) detection, Polarity Reversal (PR) detection and Call Progress Tone (CPT)
detection. An optional CMU4 board, which supports four (4) LCOB ports each, is required to support
call-metering service (50Hz, 12 kHz, and 16 kHz). In addition, the first port of the LCOB has a Power
Failure Transfer (PFT) circuit that can be wired to an SLIB port for PFT service.
The below figure shows the LCOB8, which other than the added interface circuits is identical to the
LCOB 4 and 12.
Figure 5.3.1-1 LCOB8
Connector Functions
CONNECTOR FUNCTION
CN1 and CN2 CMU4 connection for 1
st
~ 4
th
ports
CN3 and CN4 CMU4 connection for 5
th
~ 8
th
ports
CN5 and CN6 CMU4 connection for 9
th
~ 12
th
ports
LED Indications
LED DESCRIPTION LED DESCRIPTION
LD1 1
st
port - ON, In use ; OFF, Idle LD7 7
th
port - ON, In use ; OFF, Idle
LD2 2
nd
port - ON, In use ; OFF, Idle LD8 8
th
port - ON, In use ; OFF, Idle
LD3 3
rd
port - ON, In use ; OFF, Idle LD9 9
th
port - ON, In use ; OFF, Idle
LD4 4
th
port - ON, In use ; OFF, Idle LD10 10
th
port - ON, In use ; OFF, Idle
LD5 5
th
port - ON, In use ; OFF, Idle LD11 11
th
port - ON, In use ; OFF, Idle
LD6 6
th
port - ON, In use ; OFF, Idle LD12 12
th
port - ON, In use ; OFF, Idle